Device Capable of Generating Superposed Shock Wave

ABSTRACT

A device capable of generating superposed shock waves, which is applied in a racket having a racket frame and having a racket string with warp strings and weft strings mutually woven to compose a string bed, and includes: at least one first main body formed as a hard medium, a lateral wall member is convexly formed at one side or two sides thereof, a first string slot having an opening at a top end is formed at an inner side of the lateral wall member or the center of the two lateral wall members, a recess is formed at the bottom end of the first string slot; and at least one soft medium, disposed in the first string slot and allowing the racket string to be fastened. As such, the shock wave can be returned for being backwardly transferred to increase the striking force for a ball member.

BACKGROUND OF THE INVENTION 1. Field of the Invention

The present invention relates to a device, especially to a devicecapable of generating superposed shock waves which is able to generate ashock wave which can be returned for being backwardly transferred when astring bed of a racket strikes a ball member.

2. Description of Related Art

In a convention racket allowing a ball member to be struck, a racketframe of the racket is provided with racket strings arranged in the warpand the weft means for being woven as a string bed, when the ball memberstrikes the string bed, a strong shock wave is generated on the stringbed, and the shock wave is transferred in all directions, when the shockwave is transferred to the racket frame, the racket frame may bedeformed and an extreme torque would be generated when the ball memberis struck, so that the racket frame may be broken. The reasons are theconventional racket is not provided with a structure capable ofgenerating a force to against the impact force generated while the ballmember is struck; accordingly, the practicability is very much limited;as such, the above-mentioned shortages shall be improved by the skilledpeople in the art.

SUMMARY OF THE INVENTION

For solving the shortages existed in the prior art, one primaryobjective of the present invention is to provide a device capable ofgenerating superposed shock waves, in which with a first main bodyhaving a lateral wall member, a first string slot and a recess and asecond main body arranged in an opposite direction and having a lateralwall member, a second string slot and a recess and a soft medium beingrespectively disposed thereon, or the first main body and/or the secondmain body are respectively disposed with a first node plate and a secondnode plate, or the first main body and the second main body are coveredthrough an external soft medium, thereby solving the shortages existedin the prior art

Another objective of the present invention is to provide a shockabsorbing device, in which with one or more than one of the devices aredisposed at a periphery of a ball/racket frame to generate weights indifferent phases, and a string passing an inner tubular wall is disposedin an adjacent string hole of the ball/racket frame, thereby providinginterferences at different timings and bearing shock waves of a countershock force generated while a ball being struck via the string, andeffects of absorbing shock and damping are achieved.

One another objective of the present invention is to provide a devicecapable of generating superposed shock waves, in which a racket stringof a racket frame forms a striking zone of a ball member (in other wordsa shock wave generating zone), the shock wave is able to firstly strikea first main body or/and a second main body or nodes formed by a firstnode plate or/and a second node plate before striking the racket frame,so that the shock wave can be returned for being backwardly transferred,and the returning time of the shock wave can be shortened, the frequencythereof can be increased for generating an effect of superposing theshock waves, and the force for striking the ball member can beincreased.

The problem to be solved by the present invention is that: In aconvention racket allowing a ball member to be struck, a racket frame ofthe racket is provided with racket strings arranged in the warp and theweft means for being woven as a string bed, when the ball member strikesthe string bed, a strong shock wave is generated on the string bed, andthe shock wave is transferred in all directions, when the shock wave istransferred to the racket frame, the racket frame may be deformed and anextreme torque would be generated when the ball member is struck, sothat the racket frame may be broken. The reasons are the conventionalracket is not provided with a structure capable of generating a force toagainst the impact generated while the ball member is struck;accordingly, the practicability is very much limited.

For achieving the aforesaid objectives, one technical solution providedby the present invention is to provide a device capable of generatingsuperposed shock waves, which is applied in a racket having a racketframe and having a racket string with a plurality of warp strings and aplurality of weft strings mutually woven to compose a string bed, andcharacterized in including: at least one first main body, which is ahard medium and a lateral wall member is convexly formed at one side ortwo sides thereof, wherein a first string slot having an opening at atop end is formed at an inner side of the lateral wall member or thecenter of the two lateral wall members, a recess is formed at the bottomend of the first string slot, the arrangement of the lateral wall memberand the two lateral wall members includes, but not limits to, a fullsegment or a middle segment of the first main body or a front segmentand a rear segment in a staggering status or a rear segment and a frontsegment in a staggering status; and at least one soft medium, disposedin the first string slot of the first main body and allowing the racketstring to be fastened.

Wherein, according to the present invention, the bottom end of the firstmain body is disposed with a second main body which is a hard medium andarranged in an opposite direction, and a lateral wall member is convexlyformed at one side or two sides thereof, a second string slot having anopening at a bottom end is formed at an inner side of the lateral wallmember or the center of the two lateral wall members, a recess is formedat the bottom end of the second string slot, the second string slot isprovided with the soft medium allowing the racket string to be fastened;an angle defined between the first main body and the second main body isable to be adjusted from 0 degree to positive or negative 180 degreeswith respect to the racket string being staggered, the arrangement ofthe lateral wall member and the two lateral wall members includes, butnot limits to, a full segment or a middle segment of the second mainbody or a front segment and a rear segment in a staggering status or arear segment and a front segment in a staggering status. Wherein,according to the present invention, the second main body arranged in theopposite direction and formed at the bottom end of the first main bodyis integrally formed.

Wherein, according to the present invention, the bottom end of the firstmain body is disposed with a first node plate having, but not limitingto, a round shape.

Wherein, according to the present invention, the bottom end of thesecond main body is disposed with a second node plate having, but notlimiting to, a round shape, and the second node plate and the first nodeplate are not integrally formed.

Wherein, according to the present invention, four corners of the firstnode plate of the first main body are formed with notches.

Wherein, according to the present invention, four corners of the firstnode plate of the first main body are formed with notches, and fourcorners of the second node plate of the second main body are formed withnotches.

Wherein, according to the present invention, at least one middle mediumused for mutually fastening is provided between the first main body andthe second main body or between the first node plate and the second nodeplate, the middle medium includes, but not limits to, the soft medium ina planar status or an adhesive, a fabric, a leather or particle glue forincreasing the friction force and reaching a function of prohibitingshock waves generated through the warp strings and the weft warps whichare top/down and horizontally/vertically arranged so as to be mutuallyisolated for avoiding mutual interferences.

Wherein, according to the present invention, an external soft mediumconnected to the soft medium is respectively disposed on the first nodeplate and the second node plate together with a lateral surface and atop surface of the first main body and the second main body; or the atleast one external soft medium is disposed and used for covering thefirst node plate and the second node plate; or the at least one externalsoft medium is disposed and used for covering two sides of the firstnode plate and the second node plate.

For achieving the aforesaid objectives, one technical solution providedby the present invention is to provide a device capable of generatingsuperposed shock waves, which is applied in a racket having a racketframe and having a racket string with a plurality of warp strings and aplurality of weft strings mutually woven to compose a string bed, andcharacterized in including: at least one first main body, which isformed in a square shape or a rectangular shape and is a hard medium,and top ends defined at two sides are respectively and convexly formedwith a first string slot allowing the racket string to pass; and atleast one soft medium, formed in a circular status and disposed in thefirst string hole of the first main body and allowing the racket stringto be fastened.

Wherein, according to the present invention, the bottom end of the firstmain body is disposed with at least one second main body which is a hardmedium and arranged in an opposite direction and formed in a squareshape or a rectangular shape, bottom ends defined at two sides of thesecond main body are respectively and convexly formed with a secondstring slot allowing the racket string to pass, the soft medium formedin a circular status and allowing the racket string to be fastened isdisposed in the second string slot; and an angle defined between thefirst main body and the second main body is able to be adjusted from 0degree to positive or negative 180 degrees with respect to the racketstring being staggered.

Advantages achieved by the present invention are as follows: with thefirst main body having the lateral wall member, the first string slotand the recess and the second main body arranged in the oppositedirection and having the lateral wall member, the second string slot andthe recess and the soft medium being respectively disposed thereon, orthe first main body and/or the second main body are respectivelydisposed with the first node plate and the second node plate, or thefirst main body and the second main body are covered through theexternal soft medium; as such, the racket string of the racket frameforms the striking zone of the ball member (in other words the shockwave generating zone), the shock wave is able to firstly strike thefirst main body or/and the second main body or the nodes formed by thefirst node plate or/and the second node plate before striking the racketframe, so that the shock wave can be returned for being backwardlytransferred, and the returning time of the shock wave can be shortened,the frequency thereof can be increased for generating an effect ofsuperposing the shock waves, and the force for striking the ball membercan be increased; the control of the formation of the racket frame andthe torque of the racket frame can be more effective for preventing theracket frame from being broken. Accordingly, the present invention isnovel and more practical in use, and can be suitable to be applied inrelated industries.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective exploded view showing the first main bodyaccording to the present invention;

FIG. 2 is a perspective view showing the assembly of the first main bodyaccording to the present invention;

FIG. 3 is a cross sectional view showing the assembly of the first mainbody according to the present invention;

FIG. 4 is a cross sectional view showing the racket string beingdisposed the first main body according to the present invention;

FIG. 5 is a perspective view showing the bottom end of the first mainbody being disposed with the second main body arranged in an oppositedirection according to the present invention;

FIG. 6 is a perspective exploded view showing the first main body beingdisposed with the first node plate according to the present invention;

FIG. 7 is a perspective view showing the second main body being disposedin FIG. 6 according to the present invention;

FIG. 8 is a perspective view showing the notches being formed in FIG. 7according to the present invention;

FIG. 9 is a perspective view showing the second main body being disposedwith the second node plate and the notches according to the presentinvention;

FIG. 10 is a perspective exploded view showing the first main body beingdisposed with the first node plate and the second main body beingdisposed with the second node plate and the middle medium being disposedtherebetween according to the present invention;

FIG. 11 is a cross sectional view showing the assembly of FIG. 10according to the present invention;

FIG. 12 is a schematic view showing the staggering angle between thefirst main body and the second main body being 90 degrees according toone embodiment of the present invention;

FIG. 13 is a schematic view showing the staggering angle between thefirst main body and the second main body being 45 degrees according toone embodiment of the present invention;

FIG. 14 is a schematic view showing the staggering angle between thefirst main body and the second main body being 45 degrees arranged inanother direction according to one embodiment of the present invention;

FIG. 15 is a schematic view showing the present invention being appliedin the string bed of the racket according to one embodiment of thepresent invention;

FIG. 16 is a schematic view showing the string bed of the racketstriking the ball member for generating the shock waves being superposedaccording to one embodiment of the present invention;

FIG. 17 is a schematic view showing the first main body and the firstnode plate or the second main body and the second node plate beingdisposed with the external soft medium according to one embodiment ofthe present invention;

FIG. 18 is another schematic view showing the first main body and thefirst node plate or the second main body and the second node plate beingdisposed with the external soft medium according to one embodiment ofthe present invention;

FIG. 19 is one another schematic view showing the first main body andthe first node plate or the second main body and the second node platebeing disposed with the external soft medium according to one embodimentof the present invention;

FIG. 20 is a schematic view showing the lateral wall member of the firstmain body and the second main body being arranged at the full segment ofthe first main body and the second main body according to one embodimentof the present invention;

FIG. 21 , FIG. 22 and FIG. 23 are schematic views showing the twolateral wall members of the first main body and the second main bodybeing arranged at the middle segment of the first main body and thesecond main body, the front segment and the rear segment in a staggeringstatus and the rear segment and the front segment in a staggering statusaccording to one embodiment of the present invention;

FIG. 24 is a perspective view showing the assembly of the first mainbody according another embodiment of the present invention; and

FIG. 25 is a perspective view showing the bottom end of the first mainbody being disposed with a second main body arranged in an oppositedirection according to another embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

One preferred embodiment of the present invention will be described withreference to the drawings for illustrating the structural assembly, thetechnical means and the functions to be achieved by the presentinvention; and the actual ratios and the arrangement of components shallnot be limited by the ratios and the arrangement of components in theprovided figures.

Please refer from FIG. 1 to FIG. 25 , the present invention provides adevice capable of generating superposed shock waves, which is applied ina racket 4 having a racket frame 41 and having a 42 having a pluralityof warp strings 421 and a plurality of weft strings 422 composing astring bed (as shown in FIG. 15 and FIG. 16 ). According to onepreferred embodiment of the present invention, the device capable ofgenerating superposed shock waves includes at least one first main body1 and at least one soft medium 3.

The at least one first main body 1 is a hard medium and a lateral wallmember 10 is convexly formed at one side or two sides thereof. A firststring slot 11 having an opening at the top end is formed at an innerside of the lateral wall member 10 or the center of the two lateral wallmembers 10. A recess 110 is formed at the bottom end of the first stringslot 11. The arrangement of the lateral wall member 10 and the twolateral wall members 10 includes, but not limits to, a full segment or amiddle segment of the first main body 1 or a front segment and a rearsegment in a staggering status or a rear segment and a front segment ina staggering status (as shown in FIG. 1 , FIG. 2 , FIG. 3 , FIG. 4 ,FIG. 20 , FIG. 21 , FIG. 22 and FIG. 23 ).

The at least one soft medium 3 is disposed in the first string slot 11of the first main body 1 and allows the racket string 42 to be fastened(as shown in FIG. 1 , FIG. 2 , FIG. 3 and FIG. 4 ).

Please refer to FIG. 5 , according to the present invention, the bottomend of the first main body 1 is disposed with a second main body 2 whichis a hard medium and arranged in an opposite direction, and a lateralwall member 20 is convexly formed at one side or two sides thereof. Asecond string slot 21 having an opening at the bottom end is formed atan inner side of the lateral wall member 20 or the center of the twolateral wall members 20. A recess 210 is formed at the bottom end of thesecond string slot 21. The second string slot 21 is provided with thesoft medium 3 allowing the racket string 42 to be fastened. An angledefined between the first main body 1 and the second main body 2 can beadjusted from 0 degree to positive or negative 180 degrees with respectto the racket string 42 being staggered. The arrangement of the lateralwall member 20 (as shown in FIG. 20 ) and the two lateral wall members20 (as shown in FIG. 1 and FIG. 7 ) includes, but not limits to, a fullsegment or a middle segment of the second main body 2 (as shown in FIG.21 ) or a front segment and a rear segment in a staggering status (FIG.22 ) or a rear segment and a front segment in a staggering status (FIG.23 ). The second string slot 21 is provided with the soft medium 3allowing the racket string 42 to be fastened, and the second main body 2arranged in the opposite direction and formed at the bottom end of thefirst main body 1 can be integrally formed.

Please refer to FIG. 5 , FIG. 12 , FIG. 13 and FIG. 14 , the angledefined between the first main body 1 and the second main body 2 can beadjusted from 0 degree to positive or negative 180 degrees with respectto the racket string 42 being staggered; according to this embodiment,the angle can be properly adjusted with respect to the staggering angleof the racket string 42. According to the embodiment disclosed in FIG. 5, the angle defined between the first main body 1 and the second mainbody 2 is 90 degrees to form a staggering crossed shape for lowering thewind resistance.

Please refer to FIG. 6 , FIG. 7 , FIG. 10 , FIG. 11 , FIG. 8 and FIG. 9, the bottom end of the first main body 1 is disposed with a first nodeplate 12 having, but not limiting to, a round shape, or/and the bottomend of the second main body 2 is disposed with a second node plate 22having, but not limiting to, a round shape, and the second node plate 22and the first node plate 12 are not integrally formed (as shown in FIG.6 , FIG. 7 , FIGS. 10 and FIG. 11 ). Four corners of the first nodeplate 12 of the first main body 1 are formed with notches 121 for thepurpose of saving material, more importantly for reducing the windresistance when being used (as shown in FIG. 8 ); and according to thepresent invention, four corners of the second node plate 22 of thesecond main body 2 are formed with notches 221 (as shown in FIG. 9 ).

Please refer to FIG. 10 and FIG. 11 , according to the presentinvention, at least one middle medium 13 used for mutually fastening isprovided between the first main body 1 and the second main body 2 orbetween the first node plate 12 and the second node plate 22, the middlemedium 13 includes, but not limits to, the soft medium 3 in a planarstatus or an adhesive, a fabric, a leather or particle glue forincreasing the friction force and reaching a function of prohibitingshock waves generated through the warp strings 421 and the weft warps422 which are top/down and horizontally/vertically arranged so as to bemutually isolated for avoiding mutual interferences, so that thefastening status can b e kept between the first main body 1 and thesecond main body 2 or between the first node plate 12 and the secondnode plate 22 for preventing from being loosened or displaced.

Please refer to FIG. 17 , FIG. 18 and FIG. 19 , according to the presentinvention, an external soft medium 31 connected to the soft medium 3 isrespectively disposed on the first node plate 12 and the second nodeplate 22 together with a lateral surface and a top surface of the firstmain body 1 and the second main body 2 (as shown in FIG. 17 ); or the atleast one external soft medium 31 is disposed and used for covering thefirst node plate 12 and the second node plate 22 according to thepresent invention (as shown in FIG. 18 ); or the at least one externalsoft medium 31 is disposed and used for covering two sides of the firstnode plate 12 and the second node plate 22 according to the presentinvention (as shown in FIG. 19 ).

Please refer to FIG. 15 and FIG. 16 , according to the presentinvention, the racket string 42 of any of the vertical warp strings 421or the horizontal weft strings 422 of the string bed can practice forbeing used to control the shock waves; when being used, two sides of thestring bed composed of the vertical warp strings 421 and the horizontalweft strings 422 of the racket string 42 of the racket 4 arerespectively disposed with the first main body 1 and/or the second mainbody 2, and the warp strings 421 and the weft strings 422 of the racketstring 42 are respectively disposed in the first string slot 11 of thefirst main body 1 having the soft medium 3 and the second string slot 21of the second main body 2 having the soft medium 3; the first main body1 or/and the second main body 2 or the first main body 1 having thefirst node plate 12 or/and the second main body 2 having the second nodeplate 22 forms a striking zone of a ball member 5 (in other words theshock wave generating zone and as shown in FIG. 15 ); please refer toFIG. 16 , according to the present invention, the string bed is disposedon the racket 4, so that the deformation of the racket frame 41 and thetorque of the racket frame 41 can be controlled, and the racket frame 41can be prevented from being broken meanwhile the shock wave can bealtered to firstly strike the node (in other words the first main body 1and/or the second main body 2) before striking the racket frame 41, sothat the shock wave can be returned for being backwardly transferred,and the returning time of the shock wave can be shortened, the frequencythereof can be increased for generating an effect of superposing theshock waves, the force for striking the ball member 5 can be increased,wherein within the range where the shock wave is generated throughstriking the ball member 5, the shock wave is respectively and outwardlytransferred from the striking point to the racket frame 41 or/and theshock wave generated through the nodes according to the presentinvention; and when the shock wave reaches the nodes of the presentinvention or the racket frame 41, the shock wave can be returned forbeing backwardly transferred (as shown in FIG. 16 ).

Please refer to FIG. 24 and FIG. 25 , wherein FIG. 24 is a perspectiveview showing the assembly of the first main body according anotherembodiment of the present invention and FIG. 25 is a perspective viewshowing the bottom end of the first main body being disposed with asecond main body arranged in an opposite direction according to anotherembodiment of the present invention. The present invention provides adevice capable of generating superposed shock waves, which is applied ina racket 4 having a racket frame 41 and having a racket string 42 havinga plurality of warp strings 421 and a plurality of weft strings 422mutually woven for composing a string bed. According to anotherpreferred embodiment of the present invention, the device capable ofgenerating superposed shock waves includes at least one first main body1 and at least one soft medium 3.

The at least one first main body 1 is formed in a square shape or arectangular shape and is a hard medium, and the top ends defined at twosides are respectively and convexly formed with a first string slot 1100allowing the racket string 42 to pass.

The at least one soft medium 3 is formed in a circular status anddisposed in the first string hole 1100 of the first main body 1 andallows the racket string 42 to be fastened.

The bottom end of the first main body 1 is disposed with at least onesecond main body 2 which is a hard medium and arranged in an oppositedirection and formed in a square shape or a rectangular shape, thebottom ends defined at two sides of the second main body 2 arerespectively and convexly formed with a second string slot 2100 allowingthe racket string 42 to pass, the soft medium 3 formed in the circularstatus and allowing the racket string 42 to be fastened is disposed inthe second string slot 2100; and an angle defined between the first mainbody 1 and the second main body 2 can be adjusted from 0 degree topositive or negative 180 degrees with respect to the racket string 42being staggered.

According to the present invention, with the first main body 1 havingthe lateral wall member 10, the first string slot 11 and the recess 110and the second main body 2 arranged in the opposite direction and havingthe lateral wall member 20, the second string slot 21 and the recess 210and the soft medium 3 bring respectively disposed thereon, or the firstmain body 1 and/or the second main body 2 are respectively disposed withthe first node plate 12 and the second node plate 22, or the first mainbody 1 and the second main body 2 are covered through the external softmedium 31; as such, the racket string 42 of the racket frame 41 formsthe striking zone of the ball member 5 (in other words the shock wavegenerating zone), the shock wave is able to firstly strike the firstmain body 1 or/and the second main body 2 or the nodes formed by thefirst node plate 12 or/and the second node plate 22 before striking theracket frame 41, so that the shock wave can be returned for beingbackwardly transferred, and the returning time of the shock wave can beshortened, the frequency thereof can be increased for generating aneffect of superposing the shock waves, the force for striking the ballmember 5 can be increased; the control of the formation of the racketframe 41 and the torque of the racket frame 41 can be more effective forpreventing the racket frame 41 from being broken. Accordingly, thepresent invention is novel and more practical in use, and can besuitable to be applied in related industries.

What is claimed is:
 1. A device capable of generating superposed shockwaves, applied in a racket having a racket frame and having a racketstring with a plurality of warp strings and a plurality of weft stringsmutually woven to compose a string bed, and characterized in including:at least one first main body, formed as a hard medium, wherein a lateralwall member is convexly formed at one side or two sides thereof, a firststring slot having an opening at a top end is formed at an inner side ofthe lateral wall member or the center of the two lateral wall members, arecess is formed at the bottom end of the first string slot, anarrangement of the lateral wall member and the two lateral wall membersincludes, but not limits to, a full segment or a middle segment of thefirst main body or a front segment and a rear segment in a staggeringstatus or a rear segment and a front segment in a staggering status; andat least one soft medium, disposed in the first string slot of the firstmain body and allowing the racket string to be fastened.
 2. The devicecapable of generating superposed shock waves as claimed in claim 1,wherein the bottom end of the first main body is disposed with a secondmain body which is a hard medium and arranged in an opposite direction,and a lateral wall member is convexly formed at one side or two sidesthereof, a second string slot having an opening at a bottom end isformed at an inner side of the lateral wall member or the center of thetwo lateral wall members, a recess is formed at the bottom end of thesecond string slot, the second string slot is provided with the softmedium allowing the racket string to be fastened; an angle definedbetween the first main body and the second main body is able to beadjusted from 0 degree to positive or negative 180 degrees with respectto the racket string being staggered, an arrangement of the lateral wallmember and the two lateral wall members includes, but not limits to, afull segment or a middle segment of the second main body or a frontsegment and a rear segment in a staggering status or a rear segment anda front segment in a staggering status.
 3. The device capable ofgenerating superposed shock waves as claimed in claim 2, wherein thesecond main body arranged in the opposite direction and formed at thebottom end of the first main body is integrally formed.
 4. The devicecapable of generating superposed shock waves as claimed in claim 1,wherein the bottom end of the first main body is disposed with a firstnode plate having, but not limiting to, a round shape.
 5. The devicecapable of generating superposed shock waves as claimed in claim 2,wherein the bottom end of the first main body is disposed with a firstnode plate having, but not limiting to, a round shape.
 6. The devicecapable of generating superposed shock waves as claimed in claim 5,wherein the bottom end of the second main body is disposed with a secondnode plate having, but not limiting to, a round shape, and the secondnode plate and the first node plate are not integrally formed.
 7. Thedevice capable of generating superposed shock waves as claimed in claim5, wherein four corners of the first node plate of the first main bodyare formed with notches.
 8. The device capable of generating superposedshock waves as claimed in claim 6, four corners of the first node plateof the first main body are formed with notches, and four corners of thesecond node plate of the second main body are formed with notches. 9.The device capable of generating superposed shock waves as claimed inclaim 6, wherein at least one middle medium used for mutually fasteningis provided between the first main body and the second main body orbetween the first node plate and the second node plate, the middlemedium includes, but not limits to, the soft medium in a planar statusor an adhesive, a fabric, a leather or particle glue for increasing thefriction force and reaching a function of prohibiting shock wavesgenerated through the warp strings and the weft warps which are top/downand horizontally/vertically arranged so as to be mutually isolated foravoiding mutual interferences.
 10. The device capable of generatingsuperposed shock waves as claimed in claim 6 or 8, wherein an externalsoft medium connected to the soft medium is respectively disposed on thefirst node plate and the second node plate together with a lateralsurface and a top surface of the first main body and the second mainbody; or the at least one external soft medium is disposed and used forcovering the first node plate and the second node plate; or the at leastone external soft medium is disposed and used for covering two sides ofthe first node plate and the second node plate.
 11. A device capable ofgenerating superposed shock waves, applied in a racket having a racketframe and having a racket string with a plurality of warp strings and aplurality of weft strings mutually woven to compose a string bed, andcharacterized in including: at least one first main body, formed in asquare shape or a rectangular shape and as a hard medium, wherein topends defined at two sides thereof are respectively and convexly formedwith a first string slot allowing the racket string to pass; and atleast one soft medium, formed in a circular status and disposed in thefirst string hole of the first main body and allowing the racket stringto be fastened.
 12. The device capable of generating superposed shockwaves as claimed in claim 11, wherein the bottom end of the first mainbody is disposed with at least one second main body which is a hardmedium and arranged in an opposite direction and formed in a squareshape or a rectangular shape, bottom ends defined at two sides of thesecond main body are respectively and convexly formed with a secondstring slot allowing the racket string to pass, the soft medium formedin a circular status and allowing the racket string to be fastened isdisposed in the second string slot; and an angle defined between thefirst main body and the second main body is able to be adjusted from 0degree to positive or negative 180 degrees with respect to the racketstring being staggered.